Microstructures and Mechanical Properties of Magnesium Alloy ZK60 Sheets after Multi-Pass Hot Rolling

Hwang, Yeong‐Maw; Wang, Yung Lin

doi:10.4028/www.scientific.net/kem.794.113

Cited by 2 publications

(2 citation statements)

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“…Hot deformation behaviour of metals is described using constitutive models that relate flow stress as a function of strain, strain rate and temperature. Most of the previous works that estimated thermal stresses in casting, 10,11 rolling 12 and hot compression 13 used material models such as Garafalo law and extended Ludwik law, given as:…”

Section: Introductionmentioning

confidence: 99%

Analysis of hot tensile behaviour and prediction of thermal stresses during processing of AZ31 magnesium alloy

Divya

Penumakala

Kalyan

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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The use of magnesium alloys is rapidly increasing in automotive and aerospace industries. Accurate constitutive modelling of material at high temperature is a key input for numerical simulation of manufacturing processes. In the present work, hot tensile deformation behaviour of AZ31 alloy was studied by performing uniaxial tensile tests in the temperature range of 250°C–450°C and strain rates ranging from 0.1 to 0.001 s−1. The flow stress behaviour of AZ31 alloy was modelled using two rate-dependent inelastic models, viz. Garafalo law and extended Ludwik law. Various constants in these models were predicted as a function of strain rate and temperature. These rate dependent laws were integrated using Finite Element (FE) based algorithms for thermo-mechanical simulation. Evolution of thermal stresses in solid state quenching and static casting of AZ31 alloys were studied. Results reveal that both material models accurately predict the evolution of thermal stresses for high temperature quenching and casting processes.

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Section: Introductionmentioning

confidence: 99%

Analysis of hot tensile behaviour and prediction of thermal stresses during processing of AZ31 magnesium alloy

Divya

Penumakala

Kalyan

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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show abstract

“…Shen et al [5] developed a FE model coupled with the recrystallization behavior of Nb-V microalloyed steel, and analyzed the distribution and evolution of microstructure during thermomechanical controlled processing. Hwang et al [6] predicted the grain sizes of magnesium alloy ZK60 sheet during multi-pass hot rolling process.…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation of Microstructure Evolution during Continuous Hot Rolling Process of GCr15 Steel Rod

Zhang

et al. 2021

MSF

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In this paper, the microstructure evolution during continuous hot rolling process of GCr15 steel rod was investigated. A series of multi-field coupled finite element models were established based on commercial finite element software MSC.Marc. The kinetics equations of austenite grain size evolution of GCr15 steel were coupled to these models by a designed MSC.Marc subprogram. The field variables, including temperature, equivalent stress, equivalent strain, and equivalent strain rate, were calculated. The distributions of dynamic recrystallization, metadynamic recrystallization, and static recrystallization fractions were investigated. The distribution and evolution of austenite grain size at different stages in the continuous hot rolling process were analyzed. To verify the models, the temperatures of GCr15 steel rod at different stages in the continuous hot rolling process were measured. And the austenite grain sizes at cross section of the rod after the continuous hot rolling process were measured. The simulation results show a good agreement with the experimental results.

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Microstructures and Mechanical Properties of Magnesium Alloy ZK60 Sheets after Multi-Pass Hot Rolling

Cited by 2 publications

References 10 publications

Analysis of hot tensile behaviour and prediction of thermal stresses during processing of AZ31 magnesium alloy

Analysis of hot tensile behaviour and prediction of thermal stresses during processing of AZ31 magnesium alloy

Numerical Simulation of Microstructure Evolution during Continuous Hot Rolling Process of GCr15 Steel Rod

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